/*
 * This is Melet, a salary slip designer. Feed it with data regarding to salary payment, prepare it for print through the graphical presentation, and you have it done.
 * Copyright (C) 2014, AFDiaX
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * This program is based on UMLet, a Free UML Tool for Fast UML Diagrams.
 * To contact the authors of UMLet visit https://code.google.com/p/umlet/people/list
 * To contact the authors of Melet visit https://gna.org/users/gabocze
 */
package com.baselet.gwt.client.view.widgets;

import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.TextArea;

public class OwnTextArea extends TextArea {

	private InstantValueChangeHandler handler;

	public OwnTextArea() {
		super();
		sinkEvents(Event.ONPASTE);
		addKeyUpHandler(new KeyUpHandler() {
			@Override
			public void onKeyUp(KeyUpEvent event) {
				fireHandler();
			}
		});
	}

	@Override
	public void onBrowserEvent(Event event) {
		super.onBrowserEvent(event);
		if (DOM.eventGetType(event) == Event.ONPASTE) {
			Scheduler.get().scheduleDeferred(new ScheduledCommand() {
				@Override
				public void execute() {
					fireHandler();
				}
			});
		}
	}

	public void setInstantValueChangeHandler(InstantValueChangeHandler handler) {
		this.handler = handler;
	}

	public static interface InstantValueChangeHandler {
		void onValueChange(String value);
	}

	public void fireHandler() {
		handler.onValueChange(getText());
	}

}
